Data Set 10-7: In that long standing feud between the Hatfields and the McCoys, Old Doc Sawbones has been keeping score. During the last 16 years he noted in his feudian notebook a "degree of injury"
measure each time he patched up, sewed up, or made a coroner's report on anyone in the two families. Summary statistics were:
$$\begin{array} { c c c }
& \text { Hatfields } & \text { McCoys } \
\bar { X } & 41 & 34 \
\hat { S } & 6 & 8 \
N & 16 & 16
\end{array}$$
-Which of the following conclusions is proper for Data Set 10-7?
A) The Hatfields had a significantly higher injury score than the McCoys
B) The McCoys had a significantly higher injury score than the Hatfields
C) There was no significant difference between the Hatfields and the McCoys
D) Not enough information is contained in Data Set 10-7 to support one of the other alternatives.

Question

Data Set 10-7: In that long standing feud between the Hatfields and the McCoys, Old Doc Sawbones has been keeping score. During the last 16 years he noted in his feudian notebook a "degree of injury"
measure each time he patched up, sewed up, or made a coroner's report on anyone in the two families. Summary statistics were:
 $$\begin{array} { c c c } 
& \text { Hatfields } & \text { McCoys } \
\bar { X } & 41 & 34 \
\hat { S } & 6 & 8 \
N & 16 & 16
\end{array}$$
-Which of the following conclusions is proper for Data Set 10-7?
A) The Hatfields had a significantly higher injury score than the McCoys
B) The McCoys had a significantly higher injury score than the Hatfields
C) There was no significant difference between the Hatfields and the McCoys
D) Not enough information is contained in Data Set 10-7 to support one of the other alternatives.

Quizplus · Accepted Answer

The Hatfields have a higher mean injury score ($\bar{X} = 41$) compared to the McCoys ($\bar{X} = 34$), suggesting they had a significantly higher injury score. However, without conducting a statistical test (e.g., t-test), we can't definitively conclude significance, but based on the information given, A is the most appropriate choice.

Data Set 10-7: in That Long Standing Feud Between the Hatfields